Improvement in domestic boilers



I` W. H. GRAHAM.'

Domestic Boi!ers. l Y [10.151,968. 4 Patentedlun16,1874.

` wooo do o/o a nooo@ with a screw-cap,` C.

A UNITED STATES PATENT OFFICE.

IVILLIAM II. GRAHAM, QF ST. LOUIS, MISSOURI.

IMPROVEMENT IN DOMESTIC BOllERS.

Specification forming part of Letters Patent No. 151,988, dated June 16,1574; application filed April 28, 1874.

To all whom fit may concer-n.:

Be it known that I, WILLIAM H. Gaiman, of St. Louis, county of St. Louis and State ot' Missouri, have invented an Improved Kitchen- Boiler, of which the following is a speciiieation:

This invention relates ehietly to the combination of the parts eonstituting'the bottom of the boiler, and by means whereof new and important advantages are achieved, as will hereinafter appear.

Of the drawing, Figure l is a sectional elevation; Fig. 2, a side elevation.

A is the boiler. The ordinaryr construction of the boiler A has a ilat or slightly-curved bottom ,which permits th e accumulation ot'mud, sediment, tbc., at bottom, and the formation of incrustation inside of boiler', all of which it is diiiieult to remove from said boiler, as well as rendering the same and its pipe attachments ineffectual of operation. Also, a boiler of the ordinary construction is difticult of seeurin g in a plumb vertical position, providin it with a rest or stand, and otherwise necessitates frequent changes, repairs, land cleaning, involving extra time, labor, and expense. All this to avoid, I provide the boiler A and form its bottom B cone shaped, as indicated in iigures. To secure the cone-shaped bottom B to boiler, the latter has its bot-tom edge a united to the annular iange b ot' the former by rivets, 85e. (See figures.) Further, my bottom B has a flattened annular rest, b, (see Fig. 1,) for the better supporting and securing of the boiler to suitable legs, or to a stand. A firm and plumb position ot the boiler can thus be had. The bottom B forms a settling-chamber for the aceunmlations and settling of the mnd, sediment, &c., and in order to remove which I provide said bottom The screw-cap C is connected to the threaded opening of the bottom, and said cap can readily be removed, and thus an easy entrance through and inside the bottom B can be had, to effect the inside cleaning and removal of sedimentary deposits that otherwise do not pass out of waste-pipe.V c is the waste-pipe. This connects the screw-cap C. Whenever waste, therefore, does not pass out of the pipe c, or the pipe becomes choked, it is only necessaryT to unscrew said pipe b y removing the cap C, and the enlarged opening presented will readily permit the operator to reach the inside of boiler and its bottom to remedy the di'tliculty aforesaid. I provide a feed-pipe, I), from boiler to heater or range, and said pipe I arrange to pass through the bottom Il, and 'project above the mud-line in boiler, as 'shown in Fig. 1. The purer water is thus insured to pass from boiler to said hea-ter or range, the sedimentaryr matter being below in the settling-chamber of the bottom B. At the top the boilerV A is closed by the top E, which'is similarly riveted by its ange e to the ilange o of the boiler. (See Fig. l.) rThrough the top E passes the cold-water feedpipe F. This, at its lower end, has a perforated globe or rose, j", which is for the purpose of spraying the water above the mndline, cleaning the sides of boiler, it being my object to prevent the direct discharge with force ot' the water into the bottom, and consequently avoid the scattering of thedeposits in said bottom.

My discharge, as here shown, washes whatever deposits gather around the sides of boiler into the settling-chamber. Also, through top E ot boiler passes the hot-water feed-pipe G, both said pipes F and G being made to eonnect with water-sink or place of usage, as ordinarily. The pipes F and G can have stopcoeks, as usual.

l. The combination of the bottom B, boiler A, and feed-pipe F, having globej', to operate as and for the purpose set forth.

2. The combination of the bottom B, its screw-cap C, flange b, annular rest b', boiler A, having pipes c D F G, and globe j', all arranged to operate as herein shown and described.

In testimony of said invention I have hereunto set my hand in presence of witnesses.

WILLIAll/l H. GRAHAM.

lVitnesses WILLIAM W. IIEETHEL, Guns. F. MEIsNEE. 

